The '''Catholic Church''', also known as the '''Roman Catholic Church''', is the List of Christian denominations by number of members|largest Christianity|Christian Christian denomination|church
, with more than 1.27 billion members worldwide.
As one of the oldest religious institutions in the world, it has played a prominent role in the history of Western civilisation
[Gerald O'Collins|O'Collins, p. v (preface).] Papal supremacy|Headed
by the Diocese of Rome|Bishop of Rome
, known as the pope
its Theology (Catholic Church)|doctrines
are summarised in the Nicene Creed
. The Catholic...